#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
int main ()
{
    int a,b,c;
    a=0,b=0,c=0;
    scanf("a=%d,b=%d",&a,&b);
    c=a;
    a=b;
    b=c;
    printf("a=%d,b=%d",a,b);
    return 0;
}
//mark up